section .data
    str_c_lib: db "c library says: hello world!", 0xa;
    str_c_lib_len equ $-str_c_lib

    str_syscall: db "syscall says: hello world!", 0xa;
    str_syscall_len equ $-str_syscall

section .text
global _start

_start:
    push str_c_lib_len
    push str_c_lib
    push 1

    call  simu_write
    add esp, 12


    mov eax, 4
    mov ebx, 1
    mov ecx, str_syscall
    mov edx, str_syscall_len
    int 0x80
    
    mov eax, 1
    int 0x80


simu_write:
    push ebp
    mov ebp, esp
    mov eax, 4
    mov ebx, [ebp+8]
    mov ecx, [ebp+12]
    mov edx, [ebp+16]
    int 0x80
    pop ebp
    ret 